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61. What instrument measures wind speed?

A) Barometer

B) Thermometer

C) Anemometer

D) Hygrometer

62. What instrument measures atmospheric pressure?

A) Anemometer

B) Barometer

C) Thermometer

D) Rain gauge

63. Which pressure value represents extremely high atmospheric pressure?

A) 1013 mb

B) 1040 mb

C) 980 mb

D) 870 mb

64. What is considered extremely low atmospheric pressure?

A) 1050 mb

B) 990 mb

C) 870 mb

D) 1030 mb

65. What happens to atmospheric pressure when air is heated?

A) Pressure increases

B) Pressure decreases

C) Pressure remains the same

D) Pressure doubles

66. When air is cooled, what happens to its pressure?

A) Increases

B) Decreases

C) Stays the same

D) Becomes zero

67. What happens to the density of warm air?

A) Increases

B) Decreases

C) No change

D) Doubles

68. Cool air is generally:

A) Less dense

B) More dense

C) Warmer

D) Humid

69. Warm air tends to:

A) Sink

B) Stay still

C) Rise

D) Compress

70. Which of these best describes the relationship between air pressure and temperature?

A) Directly proportional

B) Inversely proportional

C) No relationship

D) Cyclical

71. What causes the differences in heating of Earth’s surface?

A) Distance from moon

B) Earth’s tilt and curvature

C) Ocean waves

D) Moon phases

72. How does the Earth’s rotation affect wind?

A) Changes wind temperature

B) Prevents wind formation

C) Causes Coriolis effect

D) Stops air from rising

73. A horizontal movement of air is called:

A) Conduction

B) Wind

C) Radiation

D) Evaporation

74. Vertical movement of air due to heating is called:

A) Advection

B) Condensation

C) Convection

D) Precipitation

75. What drives the general circulation of Earth’s atmosphere?

A) Gravity

B) Solar energy

C) Ocean tides

D) Moonlight

76. Which wind belt affects the U.S. the most?

A) Trade winds

B) Polar easterlies

C) Westerlies

D) Doldrums

77. Trade winds blow from:

A) East to west

B) West to east

C) North to south

D) South to north

78. Which region has little to no wind?

A) Jet stream

B) Doldrums

C) Westerlies

D) Trade winds

79. The doldrums are located near:

A) 30° N

B) 60° S

C) Equator

D) Poles

80. Polar easterlies blow from:

A) East to west near the poles

B) West to east at the equator

C) North to south in tropics

D) South to north at mid-latitudes